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Home > products > Pipe Fitting Flanges > EN1092-01 Weld Neck Pipe Flange WNRF Flange PN2.5 Carbon Steel Weld Neck Flange A105 TYPE 11 for Industry Applications

EN1092-01 Weld Neck Pipe Flange WNRF Flange PN2.5 Carbon Steel Weld Neck Flange A105 TYPE 11 for Industry Applications

Product Details

Place of Origin: Xi'an, China

Brand Name: PeterTrade

Certification: ISO9001, CE, API,etc

Model Number: EN1092-01 European Standard

Payment & Shipping Terms

Minimum Order Quantity: 5-10 pieces

Price: negotiable

Packaging Details: Plywood case or pallet, or as per your requirement

Delivery Time: about 15-45 days for delivery

Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability: 300 Tons Per Month

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Highlight:

A105 TYPE 11 Weld Neck Flange

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PN2.5 Weld Neck Flange

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EN1092-01 Weld Neck Pipe Flange

Product Type:
EN1092-01 Weld Neck Flanges
Flange Facing Finish:
Smooth, Spiral Serrated, Concentric Serrated, Etc.
Material:
Carbon Steel Flanges: A105 A350LF2, A694 F60,A694 F52,A694 F65 Etc.
Flange Standard:
ANSI, ISO, JIS,BS, DIN, GB,EN1092-01,etc
Pressure Rating:
PN 2.5
Products Size:
DN10-DN4000
Face Types:
Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face
Surface Treatment:
Anti-rust Oil, Black Paint, Yellow Paint, Hot Dip Galvanized, Cold Galvanized, Etc.
Temperature Range:
-29°C - 538°C
Technics:
Froged,Advanced,Forging
Product Type:
EN1092-01 Weld Neck Flanges
Flange Facing Finish:
Smooth, Spiral Serrated, Concentric Serrated, Etc.
Material:
Carbon Steel Flanges: A105 A350LF2, A694 F60,A694 F52,A694 F65 Etc.
Flange Standard:
ANSI, ISO, JIS,BS, DIN, GB,EN1092-01,etc
Pressure Rating:
PN 2.5
Products Size:
DN10-DN4000
Face Types:
Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face
Surface Treatment:
Anti-rust Oil, Black Paint, Yellow Paint, Hot Dip Galvanized, Cold Galvanized, Etc.
Temperature Range:
-29°C - 538°C
Technics:
Froged,Advanced,Forging
EN1092-01 Weld Neck Pipe Flange WNRF Flange PN2.5 Carbon Steel Weld Neck Flange A105 TYPE 11 for Industry Applications

EN1092-01 Weld Neck Pipe Flange WNRF Flange PN2.5 Carbon Steel Weld Neck Flange ASTM A105 TYPE 11 for Industry Applications

 

Description of EN1092-01 Weld Neck Flanges:

A welding neck flange, also known as a weld neck flange, is widely appreciated for its elongated hub that offers robust mechanical strength, effectively resisting deformation such as 'dishing' and 'bowing'. These flanges are renowned for their high integrity and versatility, being available in a full range of sizes, various face types including flat, raised, and RTJ (Ring Type Joint), and across all pressure classes.

 

EN1092-01 specifies the dimensions, materials, and technical specifications for weld neck flanges used in European industries. It ensures uniformity and compatibility across different manufacturers and applications within the European Union. These flanges are available in various materials suitable for different environmental and operational conditions. Common materials include carbon steel, stainless steel (e.g., 304, 316), and alloy steel, chosen for their strength, corrosion resistance, and suitability for specific applications.

 

The distinguishing feature of EN1092-01 weld neck flanges is their long, tapered hub that provides mechanical strength and minimizes stress concentrations at the base of the flange. Weld Neck Flanges may have a flat face, raised face, or ring type joint (RTJ) face depending on the sealing requirements of the application. The standard specifies dimensions such as outer diameter, bolt circle diameter, bolt hole diameter, and thickness, ensuring compatibility with matching pipe and equipment connections. EN1092-01 categorizes flanges into different pressure classes (PN) ranging from PN6 to PN100, indicating their ability to withstand varying levels of pressure.

 

 

 

EN1092-01 Type 11 Weld Neck Flange Dimensions:

 

EN1092-01 Weld Neck Pipe Flange WNRF Flange PN2.5 Carbon Steel Weld Neck Flange A105 TYPE 11 for Industry Applications 0

EN1092-01 Type 11 Weld Neck Flange PN 2.5 RF
DN Outside diameter Diameter of bolt circle Diameter of bolt hole Bolting Outside diameter of neck Flange thickness Length Neck diameters Corner radii Wall thickness Raised face Approx weight
D K L Number A C2 H2 H3 N1 R1 S d1 f1 KG
10 75 50 11 4 17.2 12 28 6 26 4 2 35 2 0.4
15 80 55 11 4 21.3 12 30 6 30 4 2 40 2 0.4
20 90 65 11 4 26.9 14 32 6 38 4 2.3 50 2 0.6
25 100 75 11 4 33.7 14 35 6 42 4 2.6 60 2 0.8
32 120 90 14 4 42.4 14 35 6 55 6 2.6 70 2 1.1
40 130 100 14 4 48.3 14 38 7 62 6 2.6 80 3 1.3
50 140 110 14 4 60.3 14 38 8 74 6 2.9 90 3 1.4
65 160 130 14 4 76.1 14 38 9 88 6 2.9 110 3 1.8
80 190 150 18 4 88.9 16 42 10 102 8 3.2 128 3 2.9
100 210 170 18 4 114.3 16 45 10 130 8 3.6 148 3 3.4
125 240 200 18 8 139.7 18 48 10 155 8 4 178 3 4.7
150 265 225 18 8 168.3 18 48 12 184 10 4.5 202 3 5.5
200 320 280 18 8 219.1 20 55 15 236 10 6.3 258 3 8.6
250 375 335 18 12 273 22 60 15 290 12 6.3 312 3 11.7
300 440 395 22 12 323.9 22 62 15 342 12 7.1 365 4 15.3
350 490 445 22 12 355.6 22 62 15 385 12 7.1 415 4 20.3
400 540 495 22 16 406.4 22 65 15 438 12 7.1 465 4 23.1
450 595 550 22 16 457 22 65 15 492 12 7.1 520 4 27.0
500 645 600 22 20 508 24 68 15 538 12 7.1 570 4 30.8
600 755 705 26 20 610 30 70 16 640 12 7.1 670 5 44.0
700 860 810 26 24 711 30 76 16 740 12 7.1 775 5 53.7
800 975 920 30 24 813 30 76 16 842 12 7.1 880 5 64.4
900 1075 1020 30 24 914 30 78 16 942 12 7.1 980 5 79.2
1000 1175 1120 30 28 1016 30 82 16 1045 16 8 1080 5 98.6
1200 1375 1320 30 32 1219 32 94 16 1245 16 8 1280 5 104
1400 1575 1520 30 36 1422 38 96 16 1445 16 8.8 1480 5 133
1600 1790 1730 30 40 1626 46 102 20 1645 16 10 1690 5 188
1800 1990 1930 30 44 1829 46 110 20 1845 16 11 1890 5 215
2000 2190 2130 30 48 2032 50 122 22 2045 16 11 2090 5 260
2200 2405 2340 33 52 2235 56 129 25 2248 18 11 2295 5 332
2400 2605 2540 33 56 2438 62 143 25 2448 18 11 2495 5 392
2600 2805 2740 33 60 2620 64 148 25 2648 18 11 2695 5 497
2800 3030 2960 36 64 2820 74 161 25 2848 18 11 2910 5 668
3000 3230 3160 36 68 3020 80 170 25 3050 18 11 3110 5 772
3200 3430 3360 36 72 3220 84 180 25 3250 20 11 3310 5 869
3400 3630 3560 36 76 3420 90 194 28 3450 20 11 3510 5 988
3600 3840 3770 36 80 3620 96 201 28 3652 20 11 3720 5 1156
3800 4045 3970 39 80 3820 102 212 28 3852 20 11 3920 5 1309
4000 4245 4170 39 84 4020 106 226 28 4052 20 11 4120 5 1441

1.Dimensions are in millimeters(mm).

2.Dimensions can be specified by different purchasers.

 

 

 

Grades of Carbon Steel Weld Neck Flanges:

ASTM A105: This is a common grade of carbon steel used for weld neck flanges. It is a forged carbon steel specifically designed for high-temperature service and offers excellent weldability and toughness.

ASTM A350 LF2: LF2 is a low-temperature carbon steel grade commonly used for weld neck flanges in applications where low-temperature toughness is required.

ASTM A694 F52/F60/F65/F70: These grades are high-yield carbon steel materials used for weld neck flanges in applications requiring high strength and impact resistance.

 

 

 

How to Ensure the Longevity and Optimal Performance of Weld Neck Flanges?

Ensuring the Longevity and Optimal Performance of Weld Neck Flanges:

Material Selection: Choose flanges made from high-quality materials suitable for the specific application environment. Stainless steel (e.g., 304, 316) is commonly used for its corrosion resistance, while carbon steel or alloy steel may be chosen for their strength and durability in high-pressure applications.

 

Proper Installation: Ensure flanges are installed correctly according to manufacturer specifications and industry standards. Proper alignment, bolt torqueing, and gasket placement are critical to prevent leaks and maintain structural integrity.

 

Surface Preparation: Before installation, ensure the flange faces are clean, smooth, and free from imperfections that could affect sealing. Use appropriate gaskets and lubricants as recommended by the manufacturer.

 

Maintenance and Inspection: Implement a regular maintenance schedule to inspect flanges for signs of wear, corrosion, or damage. Inspections should include checking bolt tightness, gasket condition, and the integrity of the flange faces.

 

Operating Conditions: Monitor operating conditions such as temperature, pressure, and fluid characteristics to ensure they are within the design limits of the flanges. Avoid exceeding maximum pressure ratings or exposing flanges to corrosive environments without appropriate protection.

 

Corrosion Protection: Consider using coatings, paints, or corrosion-resistant materials to protect flanges exposed to aggressive environments. Regularly inspect and maintain protective measures to ensure effectiveness over time.

 

Proper Handling: Handle flanges with care during transportation, storage, and installation to prevent mechanical damage or distortion. Protect flange surfaces from contamination or impact that could impair their sealing ability.

 

Emergency Preparedness: Have procedures in place for emergency shutdowns or repairs that may involve inspecting or replacing flanges. Ensure personnel are trained in proper flange maintenance and replacement techniques.

 

Upgrade and Retrofit: Consider upgrading flanges to newer materials or designs if operating conditions change or if maintenance reveals issues with current flange performance.

 

 

 

Advantages of EN1092-01 Weld Neck Flanges:

EN1092-01 weld neck flanges are widely recognized for their superior connection and are commonly utilized in larger sizes and higher pressure classes. Their unique design, with a neck extension and weld bevel, allows for a strong and reliable connection to pipes through butt welding.

 

Strength and Durability: The welded neck extension provides additional strength to the flange, making it suitable for high-pressure applications. The weld connection ensures a secure and leak-free joint, enhancing the overall durability of the flange.

 

Stress Distribution: The tapered neck design of the weld neck flange helps in distributing the stress evenly across the flange and pipe, reducing the risk of localized stress concentration and potential failure.

 

Enhanced Flow Characteristics: The smooth transition from the flange's neck to the pipe's bore minimizes turbulence and pressure drop, allowing for improved flow characteristics in the system.

 

Easy Inspection and Maintenance: The extended neck of the weld neck flange allows for easier visual inspection and access for maintenance activities such as cleaning, inspection, and repairs.

 

 

 

Applications of EN1092-01 Weld Neck Flanges:

EN1092-01 weld neck flanges are specifically designed for use in specific applications where their unique characteristics are required.

 

High-Pressure Systems: EN1092-01 weld neck flanges are often used in high-pressure systems, such as in oil and gas pipelines, chemical plants, and power generation facilities. Their robust construction and reliable sealing capabilities make them suitable for withstanding high pressures and preventing leaks.

 

High-Temperature Environments: These flanges are also commonly employed in applications where elevated temperatures are involved, such as in steam lines, heat exchangers, and thermal power plants. EN1092-01 weld neck flanges can withstand high temperatures without deformation or loss of integrity.

 

Petrochemical Industry: The petrochemical industry extensively uses EN1092-01 weld neck flanges due to their ability to handle corrosive fluids and gases. They are commonly used in refineries, chemical processing plants, and offshore platforms, where resistance to corrosion and durability are essential.

 

Pipelines: Weld neck flanges are commonly used in pipeline systems to connect pipes and provide a secure and leak-proof joint. EN1092-01 weld neck flanges are utilized in various pipeline applications, including oil and gas transmission pipelines, water and wastewater pipelines, and industrial piping systems.

 

Shipbuilding: Weld neck flanges are prevalent in shipbuilding applications. They are used in various systems on ships, such as fuel and oil transfer lines, cooling systems, and hydraulic systems. The weld neck flanges provide a reliable connection that can withstand the demanding conditions at sea.

 

Food and Beverage Industry: EN1092-01 weld neck flanges made from stainless steel are suitable for applications in the food and beverage industry. They are used in processing equipment, such as tanks, pumps, and pipelines, where hygiene and corrosion resistance are critical.